Q My blown-in insulation -- Owens Corning, installed in 1993 -- is 12 inches deep. Can I roll blanket insulation over the existing insulation, rolled out perpendicular to the ceiling joists? Should ...

Adding sufficient attic insulation is an excellent way to protect your home from temperature extremes and moisture damage ...

The right insulation will keep your home comfy and your energy costs low. Here’s how to calculate how much you need and what kind to buy. Adding insulation can be a low-cost way to cut energy bills.